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http://dx.doi.org/10.5307/JBE.2007.32.6.422

CFD Simulation of Airflow and Heat Transfer in the Cold Container  

Yun, Hong-Sun (National Institute of Agricultural Engineering)
Kwon, Jin-Kyung (National Institute of Agricultural Engineering)
Jeong, Hoon (National Institute of Agricultural Engineering)
Lee, Hyun-Dong (National Institute of Agricultural Engineering)
Kim, Young-Geon (National Institute of Agricultural Engineering)
Yun, Nam-Kyu (National Institute of Agricultural Engineering)
Publication Information
Journal of Biosystems Engineering / v.32, no.6, 2007 , pp. 422-429 More about this Journal
Abstract
To prevent deterioration of agricultural products during cold transportation, optimized temperature control is essential. Because the control of temperature and thermal uniformity of transported products are mainly governed by cooling air flow pattern in the transportation equipment, the accurate understanding and removal of appearance of stagnant air zone by poor ventilation is key to design of optimized cooling environment. The objectives of this study were to develop simulation model to predict the airflow and heat transfer phenomena in the cold container and to evaluate the effect of fan blowing velocity on the temperature level and uniformity of products using the CFD approach. Comparison of CFD prediction with PIV measurement showed that RSM turbulent model reveals the more reasonable results than standard $k-{\varepsilon}$ model. The increment of fan blowing velocity improved the temperature uniformity of product and reduced almost linearly the averaged temperature of product.
Keywords
Cold container; CFD (Computational Fluid Dynamics); Airflow; Heat transfer;
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